Magnischistura khaokrajom, a new genus and species of loach (Cypriniformes: Nemacheilidae) from the Pachi River drainage in Western Thailand

Zootaxa 2026 Open access

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Authors: LAWRENCE M. PAGE, PARINYA PAWANGKHANT, Weerapongse Tangjitjaroen, David Cagle, BASIL R. WILLIAMS, Zachary S. Randall
DOI: 10.11646/zootaxa.5757.6.7
Cited by: 0

Abstract

Magnischistura khaokrajom, new genus and species, is described from a small tributary of the Pachi River in the Suan Phueng region of the Tenasserim Hills in western Thailand. Magnischistura shares with several recently described genera of nemacheilids a globulous suborbital flap with tubercles at its extremity and a highly modified pectoral fin on mature males, but molecular data failed to support a close relationship to any of them. Morphologically, the new genus is distinguished by the presence of a suborbital flap in the female. The highly modified pectoral fin of males is hypothesized to facilitate juxtaposition with a female during spawning.

Fields of Study & Subjects

Fish Biology and Ecology Studies Fish biology ecology and behavior Fish Ecology and Management Studies

Publication details

Journal / source
Zootaxa
Volume
5757
Issue
6
Pages
583–599
Publication date
10 February 2026
Language
EN